It is well known that cutting tool is easily damaged.Tool life directly affects the mechanization.According to this problem,the blades made of high-hard tungsten carbide materials by our company in the tool manufacturing materials greatly improved tool life. Carbide products refers to alloy products which are hard to mix and melt in the refractory metal compounds(such as tungsten carbide,titanium carbide,tantalum carbide,niobium carbide,vanadium carbide.chromium carbide),metal cobalt or nickel-iron for bonding metal and powder metallurgical method.In the area of the information,all kinds of publications has increased each year.Paper diversity reached its peak.That quality publications,the paper decided to cut renovated repair processes,the tools are sharp precision,higher wear resistance.In order to adapt to this paper,the special high-alloy steel welding carried knives to the ultrafine oarticles of carbide knife.Varieties range.Notes needless to say,or even the phone book to find three such processes take.You can meet user requirements,have adequate quality assurance.